/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.commons.path.fa.dfa.transition;

import org.apache.commons.lang3.StringUtils;
import org.apache.iotdb.commons.conf.IoTDBConstant;

import java.util.List;

public class DFAWildcardTransition extends AbstractDFATransition {
    private final List<String> rejectEventList;

    public DFAWildcardTransition(int index, List<String> rejectEventList) {
        super(index);
        this.rejectEventList = rejectEventList;
    }

    @Override
    public String toString() {
        if (rejectEventList == null || rejectEventList.isEmpty()) {
            return IoTDBConstant.ONE_LEVEL_PATH_WILDCARD;
        } else {
            return IoTDBConstant.ONE_LEVEL_PATH_WILDCARD
                    + "/("
                    + StringUtils.join(rejectEventList, ",")
                    + ")";
        }
    }

    @Override
    public String getAcceptEvent() {
        return IoTDBConstant.ONE_LEVEL_PATH_WILDCARD;
    }

    @Override
    public boolean isMatch(String event) {
        return !rejectEventList.contains(event);
    }
}
